Journal
MATERIALS CHEMISTRY AND PHYSICS
Volume 290, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2022.126634
Keywords
Wear; Commercially pure titanium; Severe plastic deformation; Accumulative roll bonding
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Wear behavior of nanostructured titanium sheets produced by accumulative roll bonding (ARB) was evaluated. The variation in wear resistance was attributed to work hardening, grain size, and the layered structure of the material.
In this investigation, nanostructured titanium sheets were produced by accumulative roll bonding (ARB). A reciprocating tribometer in a pin-on-flat contact configuration was used to evaluate the wear behavior of ARB-processed sheets. The microstructure of materials was characterized using an optical microscope and trans-mission electron microscope (TEM). The worn surface was studied by a scanning electron microscope (SEM). A peeling test was used to investigate the bonding strength of clad metal sheets. The results showed that the mean grain size of the material reached 110 nm after 8 ARB cycles. For a sliding distance of 1000 m, the wear weight loss decreased by-10% up to the fourth ARB cycle and then increased by-80% up to the eighth cycle compared to the raw material. Almost identical changes in the wear resistance were observed under different normal loads. The variation in wear resistance was attributed to the work hardening, grain size, and the layered structure of the material.
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